Errors are not handled properly in async mode

[ngseer]

In async mode session.get() raises an AttributeError during error handling.

Here's an example of code reproducing the bug:

>>> import asyncio
>>> loop = asyncio.get_event_loop()
>>> from jsonapi_client import Session
>>> session = Session('http://localhost:8080', enable_async=True)
>>> loop.run_until_complete(session.get('invalid-resource'))  # Server will generate a 404 error on that request
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "/usr/lib64/python3.7/asyncio/base_events.py", line 584, in run_until_complete
    return future.result()
  File "/home/seer/.local/share/virtualenvs/pbJ32E1R/lib/python3.7/site-packages/jsonapi_client/session.py", line 345, in _get_async
    return await self.fetch_document_by_url_async(url)
  File "/home/seer/.local/share/virtualenvs/pbJ32E1R/lib/python3.7/site-packages/jsonapi_client/session.py", line 466, in fetch_document_by_url_async
    await self._ext_fetch_by_url_async(url))
  File "/home/seer/.local/share/virtualenvs/pbJ32E1R/lib/python3.7/site-packages/jsonapi_client/session.py", line 473, in _ext_fetch_by_url_async
    json_data = await self._fetch_json_async(url)
  File "/home/seer/.local/share/virtualenvs/pbJ32E1R/lib/python3.7/site-packages/jsonapi_client/session.py", line 510, in _fetch_json_async
    raise DocumentError(f'Error {response.status_code}: '
AttributeError: 'ClientResponse' object has no attribute 'status_code'

The problem is, ClientResponse class from aiohttp doesn't have a status_code property. The property that gets a status code is simply called status.

But that's not the whole issue. After I fixed that property name, the client started to generate DocumentError as expected but there's a question mark instead of any messages sent by server:

jsonapi_client.exceptions.DocumentError: Error 404: ?

The reason of this behaviour is that json() method of the ClientResponse is actually a coroutine (that should be awaited somewhere) so error_from_response function gets a generator instead of a proper json collection and fails to get any data from it.

UPD: error_from_response() is also improperly called in http_request_async method.

Some versions info:

• ArchLinux with 4.19.12 kernel
• Python 3.7.2
• jsonapi-client 0.9.6 from PyPI

[ajjn]

Closing this issue. Fixed in version 0.9.9.